/* ============================================================
   okari — página de caso de estudio
   Se apoya en styles.css (tokens, nav, riel, secciones, cta,
   footer) y solo añade las piezas propias del caso.
   ============================================================ */

/* ---------- apertura ---------- */

.kase-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 5rem);
  padding: clamp(7rem, 16vh, 9rem) var(--gutter) clamp(4rem, 10vh, 6rem)
           calc(var(--rail) + var(--gutter));
  max-width: 1400px;
  margin-inline: auto;
}

.kase-hero__glow {
  position: absolute;
  z-index: -1;
  right: -10%; top: 50%;
  translate: 0 -50%;
  width: min(80vw, 900px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201,162,39,.16) 0%, rgba(201,162,39,.05) 45%, transparent 70%);
  filter: blur(60px);
}

.kase-hero .stage__grain { z-index: -1; }

.kase-back {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  margin-bottom: clamp(1.5rem, 4vh, 2.5rem);
  font-size: .72rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--ink-dim);
  transition: color .5s var(--ease);
}

.kase-back svg { width: 15px; height: 15px; color: var(--coral); }
.kase-back:hover { color: var(--ink); }

.kase-hero__eyebrow { text-align: left; }
.kase-hero__eyebrow i:first-child { margin-left: 0; }

.kase-hero__title {
  margin: clamp(1rem, 2.5vh, 1.5rem) 0 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(3.4rem, 10vw, 8rem);
  line-height: .92;
  letter-spacing: -0.025em;
}

.kase-hero__title em,
.kase-closing {
  font-style: italic;
  background: linear-gradient(100deg, var(--gold-deep), var(--gold-lit) 40%, var(--gold) 70%, var(--gold-lit));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.kase-hero__sub {
  margin: clamp(1.25rem, 3vh, 2rem) 0 0;
  max-width: 30ch;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(1.2rem, 2.6vw, 1.75rem);
  line-height: 1.3;
}

.kase-meta {
  display: grid;
  grid-template-columns: repeat(3, auto);
  justify-content: start;
  gap: 1rem clamp(1.5rem, 3vw, 3rem);
  margin: clamp(2rem, 5vh, 3.25rem) 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--hairline);
}

.kase-meta dt {
  font-size: .64rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--coral);
}

.kase-meta dd {
  margin: .35rem 0 0;
  max-width: 22ch;
  font-size: .86rem;
  line-height: 1.5;
  color: var(--ink-dim);
}

/* tres pósters en abanico, como reels sobre la mesa */
.kase-fan {
  position: relative;
  height: min(70svh, 620px);
}

.kase-fan img {
  position: absolute;
  left: 50%; top: 50%;
  height: 86%;
  width: auto;
  aspect-ratio: 9 / 16;
  object-fit: cover;
  border-radius: 14px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .65);
  outline: 1px solid var(--hairline);
  outline-offset: -1px;
  transition: rotate 1.2s var(--ease), translate 1.2s var(--ease);
}

.kase-fan img:nth-child(1) { translate: -95% -48%; rotate: -8deg; filter: brightness(.55); }
.kase-fan img:nth-child(2) { translate: -50% -52%; z-index: 2; }
.kase-fan img:nth-child(3) { translate: -5% -48%; rotate: 8deg; filter: brightness(.55); }

.kase-hero:hover .kase-fan img:nth-child(1) { rotate: -11deg; translate: -104% -48%; }
.kase-hero:hover .kase-fan img:nth-child(3) { rotate: 11deg; translate: 4% -48%; }

/* ---------- títulos y listas de sección ---------- */

.kase-title {
  max-width: none;
  font-size: clamp(2rem, 6.5vw, 4.6rem);
}

.kase-list { margin-top: clamp(3rem, 8vh, 5rem); }

/* ---------- estrategia ---------- */

.kase-system {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(2rem, 4vw, 3.5rem);
  margin-top: clamp(3rem, 8vh, 5rem);
}

.kase-block {
  display: grid;
  align-content: start;
  gap: 1.25rem;
  padding-top: 1.75rem;
  border-top: 1px solid var(--hairline);
}

.kase-block__label {
  font-size: .68rem;
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--coral);
}

.kase-block__body {
  margin: 0;
  font-size: .94rem;
  color: var(--ink-dim);
}

.kase-steps {
  display: flex;
  flex-wrap: wrap;
  gap: .35rem .5rem;
  margin: 0; padding: 0;
  list-style: none;
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
  line-height: 1.2;
}

.kase-steps li:not(:last-child)::after {
  content: "→";
  margin-left: .5rem;
  font-family: var(--sans);
  font-size: .7em;
  color: var(--gold);
}

.kase-levels {
  display: grid;
  gap: .8rem;
  margin: 0; padding: 0;
  list-style: none;
  counter-reset: lvl;
  font-size: .86rem;
  color: var(--ink-dim);
}

.kase-levels li {
  counter-increment: lvl;
  display: grid;
  grid-template-columns: 1.75rem 1fr;
  column-gap: .25rem;
}

.kase-levels li::before {
  content: counter(lvl, decimal-leading-zero);
  grid-row: span 2;
  font-family: var(--serif);
  color: var(--gold);
}

.kase-levels b {
  font-family: var(--serif);
  font-weight: 400;
  font-size: 1.2rem;
  line-height: 1.2;
  color: var(--ink);
}

.kase-rule {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.6vw, 1.8rem);
  line-height: 1.2;
}

.kase-rule span {
  font-size: 1.8em;
  letter-spacing: -0.02em;
  color: var(--gold-lit);
}

.kase-rule i { font-style: normal; color: var(--coral); margin-inline: .2em; }

/* ---------- proceso ---------- */

.kase-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin: clamp(3rem, 8vh, 5rem) 0 0;
  padding: 0;
  list-style: none;
}

.kase-flow li {
  position: relative;
  padding-top: 2.25rem;
}

/* línea continua con un punto coral en cada paso */
.kase-flow li::before {
  content: "";
  position: absolute;
  left: 0; right: calc(-1 * clamp(1.5rem, 3vw, 2.5rem));
  top: 0;
  height: 1px;
  background: var(--hairline);
}

.kase-flow li:last-child::before { right: 0; }

.kase-flow li::after {
  content: "";
  position: absolute;
  left: 0; top: -3px;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--coral);
}

.kase-flow h3 {
  margin: .75rem 0 .75rem;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(1.4rem, 2.6vw, 1.8rem);
  line-height: 1.1;
}

.kase-flow p { margin: 0; font-size: .92rem; color: var(--ink-dim); }

/* ---------- reels ---------- */

.reels {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.75rem);
  margin: clamp(3rem, 8vh, 5rem) 0 0;
  padding: 0;
  list-style: none;
}

.reel__frame {
  position: relative;
  display: block;
  width: 100%;
  aspect-ratio: 9 / 16;
  padding: 0;
  border: 0;
  border-radius: 14px;
  overflow: hidden;
  background: #111;
  cursor: pointer;
  outline: 1px solid var(--hairline);
  outline-offset: -1px;
  transition: translate .6s var(--ease), box-shadow .6s var(--ease);
}

.reel__frame:hover { translate: 0 -4px; box-shadow: 0 24px 60px rgba(0, 0, 0, .6); }

.reel__frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* en la esquina: el centro del póster lleva el titular del reel */
.reel__play {
  position: absolute;
  left: 14px; bottom: 16px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: rgba(5, 5, 5, .45);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(246, 242, 234, .4);
  transition: opacity .4s var(--ease), scale .5s var(--ease);
}

/* triángulo de play */
.reel__play::after {
  content: "";
  position: absolute;
  left: 54%; top: 50%;
  translate: -50% -50%;
  border-style: solid;
  border-width: 7px 0 7px 12px;
  border-color: transparent transparent transparent var(--ink);
}

.reel__frame:hover .reel__play { scale: 1.08; border-color: var(--coral); }
.reel.is-playing .reel__play { opacity: 0; }

.reel__bar {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 3px;
  background: rgba(246, 242, 234, .18);
  opacity: 0;
  transition: opacity .4s var(--ease);
}

.reel__bar span { display: block; height: 100%; width: 0; background: var(--coral); }
.reel.is-playing .reel__bar,
.reel.is-paused .reel__bar { opacity: 1; }

.reel__meta {
  margin: 1rem 0 0;
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.3;
}

.reel__meta span {
  display: block;
  margin-bottom: .2rem;
  font-family: var(--sans);
  font-size: .64rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--coral);
}

/* ---------- resultados ---------- */

.kase-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  margin: clamp(3rem, 8vh, 5rem) 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.kase-stats li {
  display: grid;
  gap: .5rem;
  padding: clamp(2rem, 5vh, 3rem) clamp(1rem, 3vw, 2.5rem);
}

.kase-stats li:first-child { padding-left: 0; }
.kase-stats li + li { border-left: 1px solid var(--hairline); }

.kase-stat__num {
  font-family: var(--serif);
  font-size: clamp(3.2rem, 9vw, 7.5rem);
  line-height: .95;
  letter-spacing: -0.03em;
  background: linear-gradient(100deg, var(--gold-deep), var(--gold-lit) 40%, var(--gold) 70%, var(--gold-lit));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.kase-stat__label {
  font-size: .72rem;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--ink-dim);
}

.kase-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin: clamp(1.75rem, 4vh, 2.5rem) 0 0;
}

.kase-tags span {
  padding: .45rem 1rem;
  border: 1px solid var(--hairline);
  border-radius: 999px;
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ink);
}

.kase-note {
  margin: 1.75rem 0 0;
  max-width: 62ch;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--ink-dim);
}

/* ---------- cierre ---------- */

.kase-closing {
  margin: clamp(4rem, 12vh, 7rem) 0 0;
  font-family: var(--serif);
  font-size: clamp(2.2rem, 7vw, 5rem);
  line-height: 1.05;
  letter-spacing: -0.02em;
  text-align: center;
}

.kase-more { margin: 2rem 0 0; font-size: .8rem; letter-spacing: .12em; }

.kase-more a {
  color: var(--ink-dim);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: .2rem;
  transition: color .5s var(--ease), border-color .5s var(--ease);
}

.kase-more a:hover { color: var(--ink); border-color: var(--coral); }

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 1100px) {
  .kase-system { grid-template-columns: 1fr; }
  .kase-flow { grid-template-columns: repeat(2, 1fr); row-gap: 3rem; }
  .kase-flow li:nth-child(2)::before { right: 0; }
  .reels { grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 640px; }
}

@media (max-width: 900px) {
  .kase-hero {
    grid-template-columns: 1fr;
    padding-left: var(--gutter);
    min-height: auto;
  }

  .kase-fan { height: min(62svh, 460px); }
  .kase-meta { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .kase-meta { grid-template-columns: 1fr; }
  .kase-flow { grid-template-columns: 1fr; }
  .kase-flow li::before { right: 0; }

  /* los reels se deslizan en horizontal */
  .reels {
    display: flex;
    gap: .9rem;
    margin-inline: calc(-1 * var(--gutter));
    padding-inline: var(--gutter);
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    max-width: none;
  }

  .reels::-webkit-scrollbar { display: none; }
  .reel { flex: 0 0 68%; scroll-snap-align: center; }

  .kase-stats { grid-template-columns: 1fr; }
  .kase-stats li { padding-inline: 0; }
  .kase-stats li + li { border-left: 0; border-top: 1px solid var(--hairline); }
}